61467791 has 16 divisors (see below), whose sum is σ = 79280640. Its totient is φ = 46243680.

The previous prime is 61467787. The next prime is 61467797. The reversal of 61467791 is 19776416.

61467791 = 109² + 110² + ... + 570².

It is not a de Polignac number, because 61467791 - 2² = 61467787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61467797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11531 + ... + 15996.

It is an arithmetic number, because the mean of its divisors is an integer number (4955040).

Almost surely, 2^61467791 is an apocalyptic number.

61467791 is a deficient number, since it is larger than the sum of its proper divisors (17812849).

61467791 is a wasteful number, since it uses less digits than its factorization.

61467791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27574.

The product of its digits is 63504, while the sum is 41.

The square root of 61467791 is about 7840.1397308977. The cubic root of 61467791 is about 394.6534181502.

The spelling of 61467791 in words is "sixty-one million, four hundred sixty-seven thousand, seven hundred ninety-one".